I had a similar problem that I solved, but the answer turned out to be a bit strange.
I had a PS4 controller plugged in to my laptop, and it was somehow reading the gyroscope of the controller as the orientation of the computer, and it just stayed at whatever orientation it was at when the controller was unplugged. So I fixed it by plugging the controller back in, turning it upside down so the login screen flipped back to normal, and then uplugging it again! Not sure if this is necessarily the solution to OP's problem, but it fixed it for me and since this is on the front page of Google results when you search this issue I thought I'd add it in case it's helpful. :) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1726232 Title: Ubuntu 17.10 login screen appearing upside down To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/iio-sensor-proxy/+bug/1726232/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
